{"cve":"CVE-2026-40264","nvd":{"published":"2026-04-21T01:16:06.917","modified":"2026-06-17T10:44:55.967","status":"Analyzed","description":"OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.7},"cwes":["CWE-1259"],"references":["https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57"],"products":["openbao:openbao"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-40264","score":0.00301,"percentile":0.22867,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p49j-v9wc-wg57","url":"https://osv.dev/vulnerability/GHSA-p49j-v9wc-wg57","summary":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","modified":"2026-09-10T03:51:02.474813662Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20260420162526-f58111d2ca54"],"fixed":["0.0.0-20260420162526-f58111d2ca54"]}]},{"id":"GO-2026-5526","url":"https://osv.dev/vulnerability/GO-2026-5526","summary":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation in github.com/openbao/openbao","modified":"2026-07-27T09:11:20.883115102Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20260420162526-f58111d2ca54"],"fixed":["0.0.0-20260420162526-f58111d2ca54"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}